<template>
  <div ref="orderChartWrapper" style="height: 100%"> </div>
</template>

<script lang="ts">
  import useEcharts from '@/hooks/useEcharts'
  import { defineComponent, nextTick, onBeforeUnmount, onMounted, ref } from 'vue'
  import { dispose, graphic } from 'echarts/core'

  export default defineComponent({
    name: 'OrderChart',
    setup() {
      const loading = ref(true)
      const orderChartWrapper = ref<HTMLDivElement | null>(null)
      const init = () => {
        const option = {
          tooltip: {
            trigger: 'item',
            axisPointer: {
              type: 'cross',
              label: {
                backgroundColor: '#6a7985',
              },
            },
          },
          grid: {
            x: '-5%',
            y: 0,
            x2: '-5%',
            y2: 0,
          },
          xAxis: {
            type: 'category',
            splitLine: { show: false },
          },
          yAxis: [
            {
              type: 'value',
              splitLine: { show: false },
            },
          ],
          series: [
            {
              data: [82, 93, 90, 74, 82, 60, 50],
              type: 'line',
              smooth: true,
              lineStyle: {
                width: 0,
              },
              showSymbol: false,
              areaStyle: {
                opacity: 0.8,
                color: new graphic.LinearGradient(0, 0, 0, 1, [
                  {
                    offset: 0,
                    color: 'rgba(128, 255, 165)',
                  },
                  {
                    offset: 1,
                    color: 'rgba(1, 191, 236)',
                  },
                ]),
              },
            },
          ],
        }
        setTimeout(() => {
          loading.value = false
          nextTick(() => {
            useEcharts(orderChartWrapper.value as HTMLDivElement).setOption(option)
          })
        }, 100)
      }
      const updateChart = () => {
        useEcharts(orderChartWrapper.value as HTMLDivElement).resize()
      }
      onMounted(init)
      onBeforeUnmount(() => {
        dispose(orderChartWrapper.value as HTMLDivElement)
      })
      return {
        loading,
        orderChartWrapper,
        updateChart,
      }
    },
  })
</script>
